Magnetic powder inspection device for forge piece rotor center hole

Abstract

The utility model relates to the technical field of magnetic powder inspection, in particular to a magnetic powder inspection device for a forge piece rotor center hole, a rotor for inspection is clamped on a base of the magnetic powder inspection device through a support frame, the magnetic powder inspection device comprises an inspection mechanism, a spraying mechanism, a position adjusting module and a rotating magnetization module, the position adjusting module is designed to be matched with the rotating magnetization module to drive the magnetizer above the fixed seat to stably enter and exit from the center hole of the rotor, so that the rotor is prevented from being abraded due to deflection of the magnetizer; and the magnetizer can be driven to rotate in a reciprocating manner, so that the rotor center hole can be magnetized to adsorb the magnetic suspension, and defects in the rotor center hole are developed.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic particle flaw detection, in particular to a magnetic particle flaw detection device for a central hole of a forged rotor. Background Art

[0002] The rotor is one of the key components of the engine, and the processing of the center hole is one of the important processes. During the forging process and the processing process, the influence of factors such as tools and coolant may cause defects such as cracks, looseness, and pores in the center hole. The detection methods for the rotor center hole mainly include magnetic particle testing and ultrasonic testing. Magnetic particle testing can intuitively reflect the location and shape of the defect through the adsorption and development of magnetic powder. However, due to the influence of factors such as the large depth and small diameter of the rotor center hole, there are certain problems with the operability and effectiveness of magnetic particle testing. Although ultrasonic testing can accurately detect the depth of the defect, it cannot intuitively reflect the location, shape and size of the defect.

[0003] Existing magnetic particle flaw detection devices usually manually send the magnetizer into the rotor center hole for rotation. The manual feeding method is prone to skewness and collision with the inner wall of the rotor center hole, causing damage to the inner wall of the rotor center hole. In addition, the sprayed magnetic suspension is inconvenient to recycle, which easily causes a waste of resources.

[0004] Therefore, a magnetic particle flaw detection device for the center hole of forged rotor is proposed. Utility Model Content

[0005] The utility model aims to provide a magnetic particle flaw detection device for the center hole of a forged rotor, so as to solve the problems of easy deflection of the magnetizer and easy waste of magnetic suspension proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a magnetic particle flaw detection device for the center hole of a forged rotor, a rotor for flaw detection is clamped on the base of the magnetic particle flaw detection device through a support frame, the magnetic particle flaw detection device includes a flaw detection mechanism and a spraying mechanism, and the flaw detection device also includes a position adjustment module and a rotating magnetization module, and the rotating magnetization module cooperates with the position adjustment module to send a magnetizer into the center hole of the rotor for rotating magnetization flaw detection;

[0007] The spraying mechanism also includes a collecting and conveying module and a rotating spraying module. The collecting and conveying module cooperates with the rotating spraying module to utilize the power of the flaw detection mechanism to recycle the magnetic suspension and rotate and spray the magnetic suspension.

[0008] Preferably, the position adjustment module includes a vertical plate fixed to the upper end of the base, a support plate is fixedly installed on one side of the vertical plate, a first servo motor is fixedly installed on the inner wall of one side of the slideway opened by the support plate, the output of the first servo motor is fixedly connected to one end of the screw rod, the other end of the screw rod is rotatably connected to the inner wall of the slideway, and the outer side of the screw rod is threadedly connected to a fixed seat.

[0009] Preferably, the bottom end of the fixing seat is clamped in the slideway, and the size of the slideway is matched with the size of the bottom end of the fixing seat.

[0010] Preferably, the rotating magnetization module includes a second servo motor fixedly mounted on the upper end of the fixing seat, the output shaft of the second servo motor is fixedly connected to one end of a connecting rod, and the other end of the connecting rod is fixedly connected to the magnetizer.

[0011] Preferably, the diameter of the magnetizer is smaller than the diameter of the central hole of the rotor, and the centers of the rotor and the magnetizer are on the same straight line.

[0012] Preferably, the collecting and conveying module includes a push rod fixed at the bottom end of the fixed seat, one end of the push rod passes through the hydraulic box and is fixedly connected to a piston, the piston is clamped inside the hydraulic box on the vertical plate, one side of the hydraulic box is fixedly connected to a first liquid delivery pipe, the other end of the first liquid delivery pipe is fixedly connected to one side of the collecting box at the upper end of the vertical plate, a filter screen is provided inside the collecting box, and one side of the hydraulic box is fixedly connected to a second liquid delivery pipe.

[0013] Preferably, a first one-way valve is provided on the first liquid delivery pipe, and a second one-way valve is provided on the second liquid delivery pipe.

[0014] Preferably, the rotating spraying module includes a magnetic suspension tank fixedly connected to one end of the second liquid delivery pipe, the magnetic suspension tank is fixedly connected to one end of the liquid delivery pipe through a hydraulic pump, the other end of the liquid delivery pipe is fixedly connected to a spray head, and the spray head is tied to the outside of the magnetizer.

[0015] Beneficial effects of the utility model:

[0016] 1. The utility model drives the magnetizer above the fixed seat to stably enter and exit the central hole of the rotor by designing a position adjustment module to cooperate with the rotating magnetization module, thereby avoiding the wear of the rotor caused by the skewness of the magnetizer, and can drive the magnetizer to rotate reciprocatingly, so as to magnetize the central hole of the rotor to adsorb the magnetic suspension and develop the defects in the central hole of the rotor.

[0017] 2. The utility model designs a collection and conveying module in conjunction with a rotating spraying module, and utilizes the power of the position adjustment module to circulate and convey the filtered magnetic suspension into the magnetic suspension tank, which is convenient for recycling. The reciprocating power of the rotating magnetization module can also be used to evenly spray the magnetic suspension into the center hole of the rotor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is an overall three-dimensional schematic diagram of a magnetic particle flaw detection device for a central hole of a forged rotor according to an embodiment of the utility model;

[0020] Figure 2 A magnetic particle flaw detection device for a forged rotor center hole according to an embodiment of the utility model Figure 1 Schematic diagram of the cross-section at AA in the middle;

[0021] Figure 3 A magnetic particle flaw detection device for a forged rotor center hole according to an embodiment of the utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 4 It is a partial three-dimensional schematic diagram of a magnetic particle flaw detection device for a central hole of a forged rotor according to an embodiment of the utility model.

[0023] The markings in the figure are: 1. base; 2. rotor; 3. vertical plate; 4. support plate; 5. slide; 6. first servo motor; 7. screw rod; 8. fixed seat; 9. second servo motor; 10. connecting rod; 11. magnetizer; 12. display device host; 13. extension rod; 14. developing probe; 15. push rod; 16. hydraulic box; 17. piston; 18. first liquid delivery pipe; 19. first one-way valve; 20. collection box; 21. filter screen; 22. second liquid delivery pipe; 23. second one-way valve; 24. magnetic suspension tank; 25. infusion tube; 26. sprinkler head. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] like Figures 1 to 4 As shown, a specific embodiment of the utility model provides a magnetic particle flaw detection device for the center hole of a forged rotor. A rotor 2 for flaw detection is clamped on the base 1 of the magnetic particle flaw detection device through a support frame. The magnetic particle flaw detection device includes a flaw detection mechanism and a spraying mechanism. The flaw detection device also includes a position adjustment module and a rotating magnetization module. The rotating magnetization module cooperates with the position adjustment module to deliver the magnetizer 11 into the center hole of the rotor 2 for rotational magnetization flaw detection. The spraying mechanism also includes a collecting and conveying module and a rotating spraying module. The collecting and conveying module cooperates with the rotating spraying module to utilize the power of the flaw detection mechanism to recycle the magnetic suspension and rotationally spray the magnetic suspension. Figure 1 and Figure 2As shown, the position adjustment module includes a vertical plate 3 fixed on the upper end of the base 1, a support plate 4 is fixedly installed on one side of the vertical plate 3, a first servo motor 6 is fixedly installed on the inner wall of one side of the slideway 5 opened on the support plate 4, the output of the first servo motor 6 is fixedly connected to one end of a screw rod 7, the other end of the screw rod 7 is rotatably connected to the inner wall of the slideway 5, the outer side of the screw rod 7 is threadedly connected to a fixed seat 8, the bottom end of the fixed seat 8 is clamped in the slideway 5, the size of the slideway 5 is adapted to the size of the bottom end of the fixed seat 8, the rotating magnetization module includes a second servo motor 9 fixedly installed on the upper end of the fixed seat 8, the output shaft of the second servo motor 9 is fixedly connected to one end of a connecting rod 10, the other end of the connecting rod 10 is fixedly connected to a magnetizer 11, the diameter of the magnetizer 11 is smaller than the diameter of the center hole of the rotor 2, the centers of the rotor 2 and the magnetizer 11 are on the same straight line, one end of the support plate 4 is fixedly connected to a display device host 12, and the display device host 12 passes through the extension rod 1 through the model line 3 and is fixedly connected with a developing probe 14, which is mounted on a bracket at the upper end of the base 1. The developing probe 14 can be sent into the central hole of the rotor 2 by holding the extension rod 13 to record, so that the developing traces after magnetizing and adsorbing the magnetic suspension can be clearly displayed on the display device host 12. When in use, the first servo motor 6 drives the screw rod 7 to rotate, and the screw rod 7 drives the magnetizer 11 above the fixed seat 8 to enter and exit the central hole of the rotor 2. Then the second servo motor 9 at the upper end of the fixed seat 8 drives the connecting rod 10 to rotate back and forth, and the connecting rod 10 drives the magnetizer 11 to reciprocate in the central hole of the rotor 2, so as to magnetize the central hole of the rotor 2, which is conducive to driving the magnetizer 11 above the fixed seat 8 to stably enter and exit the central hole of the rotor 2, avoiding the magnetizer 11 from being skewed and causing wear to the rotor 2, and can drive the magnetizer 11 to rotate back and forth, so as to facilitate magnetizing the central hole of the rotor 2 to adsorb the magnetic suspension and develop defects in the central hole of the rotor 2.

[0027] Specifically, Figure 2 , Figure 3 and Figure 4As shown, the collecting and conveying module includes a push rod 15 fixed to the bottom end of the fixing seat 8, one end of the push rod 15 passes through the hydraulic box 16 and is fixedly connected to a piston 17, the piston 17 is clamped inside the hydraulic box 16 on the vertical plate 3, one side of the hydraulic box 16 is fixedly connected to a first liquid delivery pipe 18, the other end of the first liquid delivery pipe 18 is fixedly connected to one side of a collecting box 20 at the upper end of the vertical plate 3, a filter screen 21 is arranged inside the collecting box 20, one side of the hydraulic box 16 is fixedly connected to a second liquid delivery pipe 22, the first A first one-way valve 19 is provided on the liquid delivery pipe 18, a second one-way valve 23 is provided on the second liquid delivery pipe 22, the rotating spraying module includes a magnetic suspension tank 24 fixedly connected to one end of the second liquid delivery pipe 22, the magnetic suspension tank 24 is fixedly connected to one end of the liquid delivery pipe 25 through a hydraulic pump, and the other end of the liquid delivery pipe 25 is fixedly connected to a spray head 26, and the spray head 26 is tied to the outside of the magnetizer 11. When in use, when the fixed seat 8 drives the magnetizer 11 to move out of the central hole of the rotor 2, the fixed seat 8 pulls the push rod 15 The piston 17 in the hydraulic box 16 sucks the magnetic suspension, so that the first liquid delivery pipe 18 sucks the magnetic suspension filtered by the filter screen 21 in the collection box 20 into the hydraulic box 16, and the first one-way valve 19 prevents the magnetic suspension from flowing back. Then, when the fixed seat 8 drives the magnetizer 11 to enter the central hole of the rotor 2, the fixed seat 8 pushes the piston 17 in the hydraulic box 16 through the push rod 15 to discharge the magnetic suspension, so that the second liquid delivery pipe 22 delivers the magnetic suspension in the hydraulic box 16 into the magnetic suspension box 24, and the second one-way valve 19 prevents the magnetic suspension from flowing back. The valve 23 is opened to prevent the magnetic suspension from flowing back, and then the spray head 26 is tied to the outside of the magnetizer 11. The magnetic suspension tank 24 continuously supplies the magnetic suspension to the spray head 26 through the infusion tube 25. The spray head 26 follows the rotation of the magnetizer 11 to evenly spray the magnetic suspension, which is beneficial to use the power cycle of the position adjustment module to transport the filtered magnetic suspension into the magnetic suspension tank 24 for recycling. In addition, the reciprocating power of the rotating magnetization module can be used to evenly spray the magnetic suspension into the center hole of the rotor 2.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0029] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A magnetic particle flaw detection device for a center hole of a forged rotor, wherein a rotor (2) for flaw detection is mounted on a base (1) of the magnetic particle flaw detection device via a support frame, and the device is characterized in that: The magnetic particle flaw detection device comprises a flaw detection mechanism and a spraying mechanism, and the flaw detection device also comprises a position adjustment module and a rotational magnetization module. The rotational magnetization module cooperates with the position adjustment module to deliver the magnetizer (11) into the central hole of the rotor (2) for rotational magnetization flaw detection. The spraying mechanism also includes a collecting and conveying module and a rotating spraying module. The collecting and conveying module cooperates with the rotating spraying module to utilize the power of the flaw detection mechanism to recycle the magnetic suspension and rotate and spray the magnetic suspension.

2. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 1, characterized in that: The position adjustment module comprises a vertical plate (3) fixed to the upper end of the base (1), a support plate (4) fixedly mounted on one side of the vertical plate (3), a first servo motor (6) fixedly mounted on the inner wall of one side of a slideway (5) provided on the support plate (4), an output of the first servo motor (6) fixedly connected to one end of a screw rod (7), the other end of the screw rod (7) being rotatably connected to the inner wall of the slideway (5), and an outer side of the screw rod (7) being threadedly connected to a fixed seat (8).

3. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 2, characterized in that: The bottom end of the fixing seat (8) is clamped in the slideway (5), and the size of the slideway (5) is matched with the size of the bottom end of the fixing seat (8).

4. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 1, characterized in that: The rotating magnetization module comprises a second servo motor (9) fixedly mounted on the upper end of a fixing seat (8); an output shaft of the second servo motor (9) is fixedly connected to one end of a connecting rod (10); and the other end of the connecting rod (10) is fixedly connected to a magnetizer (11).

5. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 4, characterized in that: The diameter of the magnetizer (11) is smaller than the diameter of the central hole of the rotor (2), and the centers of the rotor (2) and the magnetizer (11) are on the same straight line.

6. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 1, characterized in that: The collecting and conveying module comprises a push rod (15) fixed at the bottom end of a fixing seat (8), one end of the push rod (15) passes through a hydraulic box (16) and is fixedly connected to a piston (17), the piston (17) is clamped inside the hydraulic box (16) on the vertical plate (3), one side of the hydraulic box (16) is fixedly connected to a first liquid delivery pipe (18), the other end of the first liquid delivery pipe (18) is fixedly connected to one side of a collecting box (20) at the upper end of the vertical plate (3), a filter screen (21) is arranged inside the collecting box (20), and one side of the hydraulic box (16) is fixedly connected to a second liquid delivery pipe (22).

7. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 6, characterized in that: The first liquid delivery pipe (18) is provided with a first one-way valve (19), and the second liquid delivery pipe (22) is provided with a second one-way valve (23).

8. The magnetic particle flaw detection device for the center hole of a forged rotor according to claim 1, characterized in that: The rotary spraying module comprises a magnetic suspension liquid tank (24) fixedly connected to one end of a second liquid delivery pipe (22); the magnetic suspension liquid tank (24) is fixedly connected to one end of a liquid delivery pipe (25) via a hydraulic pump; the other end of the liquid delivery pipe (25) is fixedly connected to a spray head (26); and the spray head (26) is tied to the outside of the magnetizer (11).

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